package dao;

import pojo.Category;

import java.util.List;

/**
 * @author 李主席
 * @create 2020-11-05 14:24
 */
public interface RelationDao {


    public List<Category> selectCategoriesByBid(Integer bookId);
    public Integer deleteCategoriesByBid(Integer bookId);
    public Integer insertBookCategories(Integer bookId, List<Integer> categories);

}
